After a few decades of writing, I have learned to trust the creative process. Blocks aren’t solid (if, indeed, they exist); procrastination often is hibernation. To everything there is a season, and you’ve got to go with the damnable flow. Wringing your hands or railing at the heavens accomplishes nothing. You must be patient.
As you wait, send your ideas into the universe. Know that they will circle back more fully shaped. Be there to catch them. Carry them to back to your desk, then write.